Table 10

Toxicokinetic parameters in male and female Sprague Dawley rats treated with 2,4-D (5 mg/kg, oral)

ParameterMalesFemales
Rate of absorption (min−1)0.063  ± 0.0280.065  ± 0.008
Rate of elimination (min−1)0.020  ± 0.0050.005  ± 0.000
***
Area under the curve (μg·min/ml)639.0  ± 71.64026.8  ± 139.0
***
Absorption half-life (min)11.1  ± 4.910.7  ± 1.4
Elimination half-life (min)34.6  ± 9.2139.4  ± 7.8
***
Time of maximal concentration (min)26.8  ± 4.842.9  ± 3.5
***
Maximal concentration (μg/ml)7.5  ± 0.816.2  ± 0.6
***
  • *** Indicates a statistically significant difference between males and females by a Student’s t-test (p ≤ 0.05).

  • N = 5 for males and N = 4 for females.